Returning to Washington, D.C., after negotiations with Kim Jong Uncollapsed, Donald Trump was finally able to focus on more pressing matters, namely Michael Cohen’s explosive public testimony before the House Oversight Committee on Wednesday. For more than 24 hours, the president’s official Twitter feed had been uncomfortably professional, featuring a series of videos documenting his meetings with Kim. Trump himself sounded borderline presidential on Thursday as he explained why he had to “walk away” from a deal with North Korea to lift some U.S. economic sanctions in return for Kim giving up his nukes. By Friday morning, however, Trump was back to his old, unhinged self: accusing Cohen of being paid by Hillary Clinton and calling on the Justice Department to launch investigations into his enemies.

“Oh’ [sic] I see! Now that the 2 year Russian Collusion case has fallen apart, there was no Collusion except bye [sic] Crooked Hillary and the Democrats, they say, ‘gee, I have an idea, let’s look at Trump’s finances and every deal he has ever done. Let’s follow discredited Michael Cohen and the fraudulent and dishonest statements he made on Wednesday,” he wrote in a series of tweets. “No way, it’s time to stop this corrupt and illegally brought Witch Hunt. Time to start looking at the other side where real crimes were committed.” He continued: “Michael Cohen’s book manuscript shows that he committed perjury on a scale not seen before. He must have forgotten about his book when he testified. What does Hillary Clinton’s lawyer, Lanny Davis, say about this one. Is he being paid by Crooked Hillary. Using her lawyer?”

Trump’s reference to “Cohen’s book” appears to stem from the Daily Mail, which reported Thursday that before Cohen turned on Trump, he had put together a proposal for a book in which he would refute the idea that Trump is “crazy,” “dumb,” “paranoid,” “in over his head,” or “hates the media.” “All of these things have been said about my longtime boss, Donald J. Trump,” Cohen reportedly wrote in the opening pages of the manuscript, which he allegedly pitched to several executives in the weeks before his office was raided by the F.B.I. “None of it is true. Except maybe that last one—about the media. Trump does believe that reporters are out to get him, and for a very good reason. Many of them are.”

It’s not a particularly effective rejoinder to all the various damning claims Cohen made public on Wednesday. In his testimony, Cohen himself acknowledged that he had been swept up by Trump’s cult of personality and his proximity to power—and he warned Republicans against doing the same. “I did the same thing that you are doing now for 10 years. I protected Mr. Trump for 10 years,” he told one lawmaker during cross-examination. “People that follow Mr. Trump as I did blindly are going to suffer the same consequences that I’m suffering.”

Trump, in another tweet, called the book proposal a “love letter to Trump,” and suggested that it revealed Cohen as a fraud. “Written and submitted long after Charlottesville and Helsinki, his phony reasons for going rogue. Book is exact opposite of his fake testimony, which now is a lie!”

The sudden, bilious tweetstorm marks the ends of a relative quiet period for Trump, while he was playing diplomat in Vietnam, and a familiar return to form. But Trump’s mounting paranoia about Lanny Davis is new. In his public testimony Wednesday, Cohen said that Davis—who once served as special counsel to President Bill Clinton—is not being paid for his services.

That admission sparked a bout of conspiracy theories on the right, and in the Oversight hearing room. Republican Rep. Jody Hice, for one, asked Cohen if liberal billionaire activist Tom Steyer was paying Davis. Rep. Jim Jordan demanded to know if Cohen was planning to pay Davis back. Trump, who sees Clinton’s shadowy hand whenever it is convenient, has now offered his own tantalizing theory.